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The tidal power firm owned by billionaire metals tycoon Sanjeev Gupta has unveiled plans for the world’s largest marine power turbine.

Bristol-based turbine maker Simec Atlantis Energy said its design for a 2MW turbine would be able to accommodate rotors with a diameter of between 65 to 78 feet (19m-23m), making the turbine the most powerful in the world.

The company said it was already in discussions with various governments and developers to identify locations for manufacture and testing of the technology, which could herald “the next phase of large-scale array deployment”.

The milestone engineering feat is the first since Mr Gupta’s £10bn turnaround company GFG Alliance breathed new life into...